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Click-through rate (CTR) prediction is one of the core tasks in recommender systems. User behavior sequences, as one of the most effective features, can accurately reflect user preferences and significantly improve prediction accuracy.…

Information Retrieval · Computer Science 2026-04-28 Xiaolong Chen , Haoyi Zhao , Xu Huang , Defu Lian

The session search task aims at best serving the user's information need given her previous search behavior during the session. We propose an extended relevance model that captures the user's dynamic information need in the session. Our…

Information Retrieval · Computer Science 2017-06-08 Nir Levine , Haggai Roitman , Doron Cohen

Session-based recommendation is a problem setting where the task of a recommender system is to make suitable item suggestions based only on a few observed user interactions in an ongoing session. The lack of long-term preference information…

Information Retrieval · Computer Science 2020-08-18 Andres Ferraro , Dietmar Jannach , Xavier Serra

Session-based recommendation aims to predict items that an anonymous user would like to purchase based on her short behavior sequence. The current approaches towards session-based recommendation only focus on modeling users' interest…

Information Retrieval · Computer Science 2022-05-10 Xiaokun Zhang , Bo Xu , Liang Yang , Chenliang Li , Fenglong Ma , Haifeng Liu , Hongfei Lin

We apply recurrent neural networks (RNN) on a new domain, namely recommender systems. Real-life recommender systems often face the problem of having to base recommendations only on short session-based data (e.g. a small sportsware website)…

Machine Learning · Computer Science 2016-03-30 Balázs Hidasi , Alexandros Karatzoglou , Linas Baltrunas , Domonkos Tikk

While large-scale robot datasets have propelled recent progress in imitation learning, learning from smaller task specific datasets remains critical for deployment in new environments and unseen tasks. One such approach to few-shot…

Robotics · Computer Science 2025-09-03 Amber Xie , Rahul Chand , Dorsa Sadigh , Joey Hejna

Recommender systems are tools that support online users by pointing them to potential items of interest in situations of information overload. In recent years, the class of session-based recommendation algorithms received more attention in…

Information Retrieval · Computer Science 2020-09-29 Malte Ludewig , Noemi Mauro , Sara Latifi , Dietmar Jannach

Session-based recommendation (SBR) aims to predict the user next action based on the ongoing sessions. Recently, there has been an increasing interest in modeling the user preference evolution to capture the fine-grained user interests.…

Information Retrieval · Computer Science 2022-08-23 Jiayan Guo , Peiyan Zhang , Chaozhuo Li , Xing Xie , Yan Zhang , Sunghun Kim

This paper presents a new approach to select events of interest to a user in a social media setting where events are generated by the activities of the user's friends through their mobile devices. We argue that given the unique requirements…

Machine Learning · Computer Science 2012-08-15 Alvin Cheung , Armando Solar-Lezama , Samuel Madden

Predicting fine-grained interests of users with temporal behavior is important to personalization and information filtering applications. However, existing interest prediction methods are incapable of capturing the subtle degreed user…

Machine Learning · Computer Science 2017-10-24 Tong Chen , Lin Wu , Yang Wang , Jun Zhang , Hongxu Chen , Xue Li

Click-Through Rate (CTR) prediction on cold users is a challenging task in recommender systems. Recent researches have resorted to meta-learning to tackle the cold-user challenge, which either perform few-shot user representation learning…

Information Retrieval · Computer Science 2022-10-31 Yanyan Shen , Lifan Zhao , Weiyu Cheng , Zibin Zhang , Wenwen Zhou , Kangyi Lin

Most existing unbiased learning-to-rank (ULTR) approaches are based on the user examination hypothesis, which assumes that users will click a result only if it is both relevant and observed (typically modeled by position). However, in…

Information Retrieval · Computer Science 2025-02-19 Lulu Yu , Keping Bi , Jiafeng Guo , Shihao Liu , Dawei Yin , Xueqi Cheng

One of the key challenges in Sequential Recommendation (SR) is how to extract and represent user preferences. Traditional SR methods rely on the next item as the supervision signal to guide preference extraction and representation. We…

Information Retrieval · Computer Science 2021-06-24 Muyang Ma , Pengjie Ren , Zhumin Chen , Zhaochun Ren , Huasheng Liang , Jun Ma , Maarten de Rijke

Modern music streaming services are heavily based on recommendation engines to serve content to users. Sequential recommendation -- continuously providing new items within a single session in a contextually coherent manner -- has been an…

Information Retrieval · Computer Science 2024-09-12 Pavan Seshadri , Shahrzad Shashaani , Peter Knees

Attention-based sequential recommendation methods have shown promise in accurately capturing users' evolving interests from their past interactions. Recent research has also explored the integration of reinforcement learning (RL) into these…

Machine Learning · Computer Science 2024-04-19 Melissa Mozifian , Tristan Sylvain , Dave Evans , Lili Meng

Neural text matching models have been used in a range of applications such as question answering and natural language inference, and have yielded a good performance. However, these neural models are of a limited adaptability, resulting in a…

Information Retrieval · Computer Science 2022-05-23 Bo Zhang , Chen Zhang , Fang Ma , Dawei Song

The recommendation system provides users with an appropriate limit of recent online large amounts of information. Session-based recommendation, a sub-area of recommender systems, attempts to recommend items by interpreting sessions that…

Information Retrieval · Computer Science 2022-06-28 Minjae Park

Session based model is widely used in recommend system. It use the user click sequence as input of a Recurrent Neural Network (RNN), and get the output of the RNN network as the vector embedding of the session, and use the inner product of…

Machine Learning · Computer Science 2019-08-28 Qizhi Zhang , Yi Lin , Kangle Wu , Yongliang Li , Anxiang Zeng

User intention which often changes dynamically is considered to be an important factor for modeling users in the design of recommendation systems. Recent studies are starting to focus on predicting user intention (what users want) beyond…

Information Retrieval · Computer Science 2021-07-19 Arpita Chaudhuri , Debasis Samanta , Monalisa Sarma

In information retrieval (IR) and related tasks, term weighting approaches typically consider the frequency of the term in the document and in the collection in order to compute a score reflecting the importance of the term for the…

Machine Learning · Computer Science 2021-09-22 Alejandro Moreo Fernández , Andrea Esuli , Fabrizio Sebastiani